PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN open 2bb

BB vs BTN open 2bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN opens 2bb · Big blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 4.14bbYour cards?
1bb
2bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 17.5%Call 68.7%Raise 4/6bb 13.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN opens 2bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 17.5%, calls 68.7% and raises 4/6bb 13.8%. Always call: 44, 22, A2s, K8s-K9s, K2s-K3s, Q7s, Q5s, Q2s-Q3s, J2s-J6s, T7s, T2s-T4s, 92s-94s, 86s, 82s-84s, 72s-74s, 62s-63s, 52s-53s, 42s+, 32s, A2o-AJo, K2o-KJo, Q2o-Q9o, J5o+, J3o, T6o+, 96o+, 85o+, 75o+, 64o+, 53o+, 43o. Always raise 4/6bb: JJ+, 88, ATs+, A6s, KQs, K6s, QTs+, 98s, AKo. Mixed: 99-TT, 55-77, 33, A7s-A9s, A3s-A5s, KTs-KJs, K7s, K4s-K5s, Q8s-Q9s, Q6s, Q4s, J7s+, T8s+, T5s-T6s, 95s-97s, 87s, 85s, 75s+, 64s+, 54s, AQo, KQo, QTo+, J4o, 95o, 74o.

Always fold
J2o, T2o-T5o, 92o-94o, 82o-84o, 72o-73o, 62o-63o, 52o, 42o, 32o
Always call
44, 22, A2s, K8s-K9s, K2s-K3s, Q7s, Q5s, Q2s-Q3s, J2s-J6s, T7s, T2s-T4s, 92s-94s, 86s, 82s-84s, 72s-74s, 62s-63s, 52s-53s, 42s+, 32s, A2o-AJo, K2o-KJo, Q2o-Q9o, J5o+, J3o, T6o+, 96o+, 85o+, 75o+, 64o+, 53o+, 43o
Always raise 4/6bb
JJ+, 88, ATs+, A6s, KQs, K6s, QTs+, 98s, AKo
Mixed
99-TT, 55-77, 33, A7s-A9s, A3s-A5s, KTs-KJs, K7s, K4s-K5s, Q8s-Q9s, Q6s, Q4s, J7s+, T8s+, T5s-T6s, 95s-97s, 87s, 85s, 75s+, 64s+, 54s, AQo, KQo, QTo+, J4o, 95o, 74o
Settings: 4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.